Methotrexate and the citrovorum factor in the treatment of psoriasis.
D000368:Aged; D006801:Humans; D002955:Leucovorin / Q000627:therapeutic use*; D008727:Methotrexate / Q000627:therapeutic use*; D008875:Middle Aged; D011565:Psoriasis / Q000188:drug therapy*
D002955:Leucovorin; D008727:Methotrexate